426540447 has 6 divisors (see below), whose sum is σ = 616113992. Its totient is φ = 284360292.

The previous prime is 426540431. The next prime is 426540467. The reversal of 426540447 is 744045624.

It is not a de Polignac number, because 426540447 - 2⁴ = 426540431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426540467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23696683 + ... + 23696700.

Almost surely, 2^426540447 is an apocalyptic number.

426540447 is a deficient number, since it is larger than the sum of its proper divisors (189573545).

426540447 is a wasteful number, since it uses less digits than its factorization.

426540447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47393389 (or 47393386 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 426540447 is about 20652.8556621112. The cubic root of 426540447 is about 752.7545799996.

The spelling of 426540447 in words is "four hundred twenty-six million, five hundred forty thousand, four hundred forty-seven".